2008年初，在第三代电动球阀的基础上，扩展到带反馈型和模拟量型(0 - 10vdc)的微型电动调节球阀。

At the early of 2008, we pushed our micro automatic ball valves which with feedback signal and proportional (0-10vdc).

youdao

2008年初，在第三代电动球阀的基础上，扩展到带反馈型和模拟量型(0 - 10vdc)的微型电动调节球阀。

At the early of 2008, we pushed our micro automatic ball valves which with feedback signal and proportional (0-10vdc).

youdao